Ionic equations                                                                     

Write the following as ions as appropriate.  Include state symbols:

1) Mg(OH)2(aq)                         2) HNO3(aq)                     3) Mg(NO3)2(aq)                        4) CaSO4(aq)             5) 2Al(NO3)3(aq)   

 Mg2+(aq)  +  2OH-(aq)               H+(aq)  +  NO3-(aq)            Mg2+(aq)  +  2NO3-(aq)               Ca2+(aq)  +  SO42-(aq)        2Al3+(aq)  +  6NO3-(aq)

 

Write the following as balanced ionic equations:

6       Ca(OH)2(aq)           +        H2SO4(aq)              à     CaSO4(aq)              +        2H2O(l)

          OH-(aq)                  +        2H+(aq)                  à     H2O(l)

7       SrCO3(aq)               +        2HNO3(aq)             à     Sr(NO3)2(aq)          +        H2O(l)           +        CO2(g)

CO32-(aq)                +        2H+(aq)                  à     H2O(l)          +        CO2(g)

8       Al(s)                       +        H3PO4(aq)              à     AlPO4(aq)               +        1.5 H2(g)

          Al(s)                       +        3H+(aq)                  à     Al3+(aq)                  +        1.5 H2(g)

9       AgNO3(aq)             +        NaCl(aq)                 à     AgCl(s)                   +        NaNO3(aq)

          Ag+(aq)                   +        Cl-(aq)                     à     AgCl(s)

10     Dilute Nitric acid is added to a solution of aluminium carbonate

CO32+(aq)               +        2H+(aq)                  à     H2O(l)          +        CO2(g)

11     Dilute sodium hydroxide is added to a solution of iron (III) chloride.  A red precipitate of iron (III) hydroxide and sodium chloride solution is made

          Fe3+(aq)                  +        3OH-(aq)                          à     FeCl3(s)

12     Dilute silver nitrate is added to a solution of potassium bromide.  A cream precipitate of silver bromide is made and one other aqueous solution

          Ag+(aq)                   +        Br-(aq)                    à     AgBr(s)